Definition: Asynchronous Motor

Asynchronous Motors are AC motors designed such that the rotor movement is not synchronized with the moving stator field. An asynchronous motor's rotating stator field induces a current in the rotor windings. This induced current in turn generates a force drawing the rotor toward the stator.

In an asynchronous motor torque is only generated when the rotor is not in phase with the stator. If the rotor were to become aligned with the stator field the torque would disappear thus causing the rotor to pause. The stator field basically pulls the rotor. This lag between the stator and the rotor is commonly referred to as slip.

© 2017 Microchip Technology, Inc.
Notice: ARM and Cortex are the registered trademarks of ARM Limited in the EU and other countries.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.